Yes it is just like all the other filters in the DBL line of filters. Donaldson also writes that all of the DBL line of filters filter out 90% of contaminants that are 10 microns or larger, compared to 50% or less for typical cellulose filters.

I'm going to put a Donaldson P502503 on my S2000 after I get the adapter made. Even though it's not in the DBL line it still has the 99% @ 15 micron rating.